Ultra runs in South East
Find ultra runs in South East in 2025/2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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- Fri 1 May 2026
- £16-£27
Midweek Chasing Numbers May
The aim of the midweek runs is to hold events as cheaply as possible in order for people to be able to build their numbers or simply to help people achieve their own goals at an affordable price.
- Families
- Newcomers
- Event village
- All ages
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Mon 4 May 2026
- £16-£27
Bank Holiday Madness May
This Bank Holiday event is run as cheaply as possible in order for people to be able to build their numbers or simply to help people achieve their own goals at an affordable price.
- Families
- Newcomers
- Event village
- All ages
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sat 6 - Sun 7 Jun 2026
- £80
- 2 charities
Endure24 | Reading
The UK’s favourite 24-hour trail race! Epic, Brutal, Relentless. Race against the clock to tackle as many laps of the iconic course as you can. How far can you go in 24 hours?
- Dogs allowed at venue
- Entertainment
- Music
- Ballot
- Chip timing
- Enter online
- Event village
- Event expo
- Park
- Free venue entry
- Sustainability policy
- Relay
- Age 16 & over
- 24 hrs multi terrain running
- Sat 13 Jun 2026
- £60-£62
Bewl Water Summer | Ultra
Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon on the same day was previously rated one of the top UK marathons.
- Chip timing
- Enter online
- Hilly
- Age 20-80
- 50 km trail running + 1500 ft ascent
- Sat 20 Jun 2026
- £55-£165
Race to the King
Take on a challenge fit for royalty in this epic ultramarathon along the South Downs Way and Monarch’s Way. Choose from two unique 50km loops – or tackle both in a non-stop 100km challenge!
- Recycling
- Newcomers
- Entertainment
- Music
- Event village
- Park
- Rural
- Free venue entry
- Sustainability policy
- Public transport links
- Age 18 & over
- 50K ultra run 2
- 100K ultra run
- Trail run
- Ultra run
- Fri 26 Jun 2026
- £113-£115
Kent Backyard Ultra | Round Four: Bedgebury
Series finale on wide forest gravel through Bedgebury National Pinetum and Forest. Run a loop (a 'yard') every hour, on the hour, until only one runner remains. Miss the bell, and you're out.
- Newcomers
- Chip timing
- Enter online
- Undulating
- Traffic free
- Event village
- Rural
- Age 16 & over
- 1 day trail running + 305 ft ascent
- Sat 11 - Sun 12 Jul 2026
- £85-£255
Race to the Stones
Conquer Britain's oldest trail, the ancient Ridgeway, as you race towards the 5000-year-old Avebury Standing Stones.
- Families
- Recycling
- Newcomers
- Event village
- Rural
- Sustainability policy
- Public transport links
- Age 18 & over
- 50K ultra run 2
- 100K ultra run 3
- Sat 12 Sep 2026
- £60-£62
Bewl Water Autumn | Ultra
Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon course was previously rated one of the top UK marathons.
- Chip timing
- Enter online
- Hilly
- Age 20-80
- 50 km trail running + 1500 ft ascent
- Sat 25 Oct
Beachy Head Marathon | Ultramarathon
- 52.6 km trail running + 4534 ft ascent
- Sat 8 Nov
Race to Remember | 76km
- 76 km multi terrain running + 2100 ft ascent
- Sat 8 Nov
Five Trails Ultra & Three Trails Half | 5 Trails Ultra
- 50 km trail running + 1169 m ascent
- Sun 21 Dec
Portsmouth Coastal Waterside Marathon Events | 50K Ultra
- 50 km multi terrain running
- Sat 7 Mar 2026
EnduranceLife - Sussex | Ultra
- 32.5 miles trail running + 5266 ft ascent
- Sat 7 Mar 2026
London Marathon Long Training Run - Day 1
- 7 hrs trail running + 0 ft ascent
- Sat 14 Mar 2026
London Marathon Long Training Run - Day 2
- 7 hrs trail running + 0 ft ascent
- Sat 21 Mar 2026
London Marathon Long Training Run - Day 3
- 7 hrs trail running + 0 ft ascent
- Sat 4 Apr 2026
London Marathon Long Training Run - Day 5
- 7 hrs trail running + 0 ft ascent
- Sat 9 - Sun 10 May 2026
Goring Gap Trails
- Ultra run 2
- Long distance walk
- Short walk 2
- Half marathon
- Sat 20 Jun 2026
Three Shires Way Ultra & Marathon | Ultra
- 50 miles trail running + 1349 ft ascent